
( Brand: Epoxy ), ( Manufacturer Part Number: 21-247 )
The 21-247 GC pre-sensitized acting epoxy-glass FR4 copper laminate is a high-performance material often used in the manufacturing of printed circuit boards (PCBs). This specific product measures 7 inches by 10 inches and is made of a fiberglass reinforced epoxy resin, known as FR4, which provides excellent electrical insulation and mechanical strength.
The epoxy-glass FR4 material is pre-sensitized, meaning it has been treated with a photosensitive substance, allowing for the creation of copper patterns through a process called photolithography. This pre-sensitization process ensures a consistent copper layer, which is crucial for electrical conductivity and the overall reliability of the PCB.
The copper layer itself is 1 ounce per square foot (oz/ft ), providing a good balance between electrical conductivity and cost. This material is commonly used in single-sided PCBs, where the copper layer is used only on one side of the FR4 base, but it can also be used in multi-layer PCBs with additional copper layers added through subsequent processing steps.
In summary, the 21-247 GC pre-sensitized acting epoxy-glass FR4 copper laminate is a versatile and reliable material for PCB manufacturing, combining the strength and insulation of FR4 with the electrical conductivity of copper. Its pre-sensitization ensures consistent results and makes it a popular choice for a wide range of electronic applications.
Pros of buying 21-247 gc pre-sensitized acting epoxy-glass FR4 copper 7x10:1. Pre-sensitized: The material is already sensitized, which means it is already prepared to be exposed to ultraviolet (UV) light for photolithography, saving time and effort in the manufacturing process.
2. High thermal performance: FR4 is a type of fiberglass-reinforced epoxy laminate that has excellent thermal properties, making it suitable for use in high-temperature applications.
3. Good electrical conductivity: Copper is a highly conductive material, which makes it ideal for use in electrical applications.
4. Good mechanical strength: Epoxy-glass laminates have excellent mechanical strength, making them suitable for use in structural applications.
Cons of buying 21-247 gc pre-sensitized acting epoxy-glass FR4 copper 7x10:1. Expensive: The material is relatively expensive due to the use of high-quality materials and the process of pre-sensitizing.
2. Limited availability: The material may not be widely available in all areas, making it difficult to source.
3. Limited customization: The material is pre-sensitized and has a specific size and shape (7x10), which may not be suitable for all applications.
4. Limited lifespan: The material may have a limited lifespan due to the degradation of the epoxy-glass laminate over time, especially in high-temperature applications.
Conclusion:The 21-247 gc pre-sensitized acting epoxy-glass FR4 copper 7x10 is a high-quality material suitable for use in applications that require high thermal performance, good electrical conductivity, and mechanical strength. However, its high cost, limited availability, limited customization, and limited lifespan may make it a less attractive option for some users.
Recommendation:If you require a material with the properties of 21-247 gc pre-sensitized acting epoxy-glass FR4 copper 7x10, it may be worth considering alternatives with similar properties but at a lower cost. For example, you could consider using a different type of fiberglass-reinforced epoxy laminate or a different type of copper-clad laminate. Alternatively, you could consider designing your application to use a smaller or differently shaped material to reduce cost. Ultimately, the best option will depend on your specific application requirements and budget constraints.